Cushion Cut Lab-Grown Diamond Bridal Set Engagement Rings in 18K White Gold Under £4,000

Cushion cuts are naturally well-suited to lab-grown diamonds. Their larger facets and vintage character create romantic light play, and the lab-grown price advantage lets you choose a higher carat weight to maximise the cushion's signature charm.

The cushion cut features softly rounded corners and larger facets that produce broad flashes of light rather than the pinpoint sparkle of a round brilliant. Its pillow-like shape evokes romance and vintage elegance, making it a favourite for those who appreciate character over pure brilliance. Available in square and elongated proportions.

Bright, modern elegance at an accessible price. 18K white gold contains 75% pure gold alloyed with white metals such as palladium or silver, finished with a rhodium plating for a bright, reflective white appearance. It offers the elegant look of platinum with a lighter weight.

Under £4,000, natural diamond engagement rings become a strong option — 0.7ct to 1ct stones in classic solitaire or elegant halo settings. Lab-grown opens the door to 1.5ct–2ct showpieces.

Lab-grown cushion cuts are typically 15–25% less than equivalent lab-grown rounds, doubling the value proposition.

Bridal Set rings with a 1ct lab-grown diamond start above £4,000

At 1ct, even lab-grown bridal set rings start above £4,000.

Need help finding the perfect ring? Book a free consultation — our experts can work with any budget.

Pricing Guide

Cushion Diamond Price Guide

Cushion diamond prices updated daily. Book a free consultation to see diamonds in person at our Hatton Garden atelier.

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Cushion cut engagement rings feature a softened square silhouette with rounded corners, combining the brilliance of modern diamond cutting with a romantic, antique feel. Their gentle, pillow-like shape has seen a resurgence in popularity, offering a distinctive alternative to the traditional round.

Discover our selection of cushion cut designs or create your own through our ring builder. Available in solitaire, halo, and vintage settings in 18kt white, yellow, or rose gold, or platinum.

Cushion Cut Lab-Grown Diamond Bridal Set Engagement Rings in 18K White Gold Under £4,000 — FAQs

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